rfc:useas

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rfc:useas [2012/04/12 14:59] – laruencerfc:useas [2012/07/18 14:52] – laruence
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   * Version: 1.0   * Version: 1.0
   * Date: 2012/04/12   * Date: 2012/04/12
-  * Author: Xinchen Hui <laruence@php.net)+  * Author: Xinchen Hui <laruence@php.net>
   * Status: Under Discussion   * Status: Under Discussion
   * First Published at: http://wiki.php.net/rfc/useas   * First Published at: http://wiki.php.net/rfc/useas
Line 10: Line 10:
 Allow use AS in the closure declaration, like: Allow use AS in the closure declaration, like:
  
-''+<code>
 <?php <?php
   $foo = "bar";   $foo = "bar";
      
-  $func = function () ues ($foo as $dup, &$foo as $ref) { //alias name+  $func = function () use ($foo as $dup, &$foo as $ref) { //alias name
   };   };
      
-''+</code>
  
 ===== Proposal ===== ===== Proposal =====
  
-I have made a patch,  but for now, it doesn't support alias $this, like: +I have made a patch, after patch,  the following script: 
-''+ 
 +<code>
 <?php <?php
 +
 +$a = "2";
 +
 +$b = function() use (&$a as $b, $a as $c, $a as $e) {
 +    echo $b;
 +    echo $c;
 +    echo $e;
 +    $b = 4;
 +};
 +
 +$b();
 +
 +echo $a;
  
 class Foo { class Foo {
-   public function bar() { +    public function closure() { 
-      return function() use ($this as $obj) //Error +        return function () use ($this as $obj) { 
-      {}; +            var_dump($obj); 
-   }+        }; 
 +    }
 } }
-'' 
  
-==== Patch ====+$foo = new Foo(); 
 + 
 +$a = $foo->closure(); 
 +$a(); 
 +</code> 
 + 
 + will output: 
 +<code> 
 +2224object(Foo)#2 (0) { 
 +} 
 +</code>  
 + 
 +I will be keeping improve this patch. 
 + 
 +===== Voting===== 
 +<doodle  
 +title="Should this RFC be merged into trunk(5.5)?" auth="laruence" voteType="single" closed="False"> 
 +   * Yes 
 +   * No 
 +</doodle> 
 +===== Patch =====
  
    * https://gist.github.com/2367913    * https://gist.github.com/2367913
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 ===== Changelog ===== ===== Changelog =====
    * 2012-04-12 Xinchen Hui Initial version    * 2012-04-12 Xinchen Hui Initial version
 +   * 2012-07-18 Xinchen Hui Open voting 
rfc/useas.txt · Last modified: 2017/09/22 13:28 by 127.0.0.1

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